nikismart Author

Level 1

4 points

iMac 24 2009 just started denying access to my own website

I have an old 2009 iMc 24 that has been running fine other than a new hard drive a few years ago. Just started denying access to my own website, which opens fine on my newer MacBook. The message I get is:

Your connection is not private

Attackers might be trying to steal your information from (my website) (for example, passwords, messages, or credit cards). Learn moreNET::ERR_CERT_DATE_INVALID

My OS is:

System Software Overview:

System Version: OS X 10.11.6 (15G22010)

Kernel Version: Darwin 15.6.0

Is this maybe a compatibility issue?

Any advice is appreciated

Thank you

[Re-Titled by Moderator]

Posted on Oct 16, 2021 4:05 PM

Reply

Similar questions

5 replies

Level 9

77,780 points

Oct 16, 2021 7:03 PM in response to nikismart

If you use certs from Let's Encrypt on your site, you may wish to see this KB document they published:

DST Root CA X3 Expiration (September 2021)

Reply

Community+ 2025

Level 10

741,125 points

Oct 16, 2021 4:12 PM in response to nikismart

This is caused by an expired system certificate. Switch to Firefox, or choose Utilities from the Finder's Go menu, open the Script Editor, and run:

do shell script "curl -k https://letsencrypt.org/certs/isrgrootx1.der > ~/Downloads/isrgrootx1.der"

Double-click the downloaded certificate.

(206431)

Reply

Level 10

120,914 points

Oct 16, 2021 5:02 PM in response to Niel

Thanks Niel for your tip.

I've got the same issue with my iMac 24" 2009 El Capitan 10.11.6 as well.

It's working now.

Reply

nikismart Author

Level 1

4 points

Oct 16, 2021 6:58 PM in response to Niel

Thanks for the help Niel.

I had a hard time gettign it to work. It still needed to be manually configured to 'Always Trust'.

Its working now!

Thanks again

Reply

nikismart Author

Level 1

4 points

Oct 16, 2021 11:17 PM in response to Allan Jones

Thanks Allan. That is a great article and explanation of what I am experiencing.

Reply

This thread has been closed by the system or the community team. You may vote for any posts you find helpful, or search the Community for additional answers.

iMac 24 2009 just started denying access to my own website

Welcome to Apple Support Community

A forum where Apple customers help each other with their products. Get started with your Apple Account.

Learn more Sign up